Browse wiki
Jump to navigation
Jump to search
On October 15, 2010, at approximately 2312 … On October 15, 2010, at approximately 2312, Salem Unit 1 experienced an automatic reactor trip. The automatic reactor trip was the result of a turbine trip. The cause of the turbine trip was the actuation of the loss of field relay, which provides the regular (primary) protection for loss of excitation for the main generator. The exact cause for the loss of excitation has not yet been determined; a root cause evaluation is in progress. The most likely cause for the actuation of the loss of field relay is a defective Automatic Digital Regulator computer (WDR 2000).</br></br>Corrective actions included: Repairing the main generator potential transformer spring loaded detent drawer locking mechanism and replacing the fuses. Unit 1 was returned to service with the voltage regulator in manual control. The unit 1 voltage regulator will be replaced during the next scheduled refueling outage.</br></br>This report is being made in accordance with 10CFR50.73(a)(2)(iv)(A), "any event or condition that resulted in manual or automatic actuation of any of the systems listed in paragraph (a)(2)(iv)(B)....</br></br>v.; �sted in paragraph (a)(2)(iv)(B)....
v.; � +
On October 15, 2010, at approximately 2312 … On October 15, 2010, at approximately 2312, Salem Unit 1 experienced an automatic reactor trip. The automatic reactor trip was the result of a turbine trip. The cause of the turbine trip was the actuation of the loss of field relay, which provides the regular (primary) protection for loss of excitation for the main generator. The exact cause for the loss of excitation has not yet been determined; a root cause evaluation is in progress. The most likely cause for the actuation of the loss of field relay is a defective Automatic Digital Regulator computer (WDR 2000).</br></br>Corrective actions included: Repairing the main generator potential transformer spring loaded detent drawer locking mechanism and replacing the fuses. Unit 1 was returned to service with the voltage regulator in manual control. The unit 1 voltage regulator will be replaced during the next scheduled refueling outage.</br></br>This report is being made in accordance with 10CFR50.73(a)(2)(iv)(A), "any event or condition that resulted in manual or automatic actuation of any of the systems listed in paragraph (a)(2)(iv)(B)....</br></br>v.; �sted in paragraph (a)(2)(iv)(B)....
v.; � +
Has query"Has query" is a predefined property that represents meta information (in form of a <a rel="nofollow" class="external text" href="https://www.semantic-mediawiki.org/wiki/Subobject">subobject</a>) about individual queries and is provided by <a rel="nofollow" class="external text" href="https://www.semantic-mediawiki.org/wiki/Help:Special_properties">Semantic MediaWiki</a>.
5 +
Modification date"Modification date" is a predefined property that corresponds to the date of the last modification of a subject and is provided by <a rel="nofollow" class="external text" href="https://www.semantic-mediawiki.org/wiki/Help:Special_properties">Semantic MediaWiki</a>.
15:10:02, 27 November 2017 +
Processing error"Processing error" is a predefined property provided by <a rel="nofollow" class="external text" href="https://www.semantic-mediawiki.org/wiki/Help:Special_properties">Semantic MediaWiki</a> and represents errors that appeared in connection with improper value annotations or input processing.
URL"URL" is a <a href="/Special:Types/URL" title="Special:Types/URL">type</a> and predefined property provided by <a rel="nofollow" class="external text" href="https://www.semantic-mediawiki.org/wiki/Help:Special_properties">Semantic MediaWiki</a> to represent URI/URL values.